title: Words of wisdom. Re: The efficacy and safety of udenafil, a new selective phosphodiesterase type 5 inhibitor, in patients with erectile dysfunction. Paick J-S, Kim SW, Yang DY, Kim JJ, Lee SW, Ahn TY, Choi HK, Suh J-K, Kim SC.
authors.affiliation: 2nd Department of Urology, and Center for Sexual and Reproductive Health, Aristotle University of Thessaloniki, Greece. kchatzim@med.auth.gr
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Hatzimouratidis